12012554233 has 4 divisors (see below), whose sum is σ = 12013000528. Its totient is φ = 12012107940.

The previous prime is 12012554221. The next prime is 12012554237. The reversal of 12012554233 is 33245521021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33245521021 = 211 ⋅157561711.

It is a cyclic number.

It is not a de Polignac number, because 12012554233 - 2²⁵ = 11978999801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012554237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179991 + ... + 237532.

It is an arithmetic number, because the mean of its divisors is an integer number (3003250132).

Almost surely, 2^12012554233 is an apocalyptic number.

It is an amenable number.

12012554233 is a deficient number, since it is larger than the sum of its proper divisors (446295).

12012554233 is an equidigital number, since it uses as much as digits as its factorization.

12012554233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446294.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 12012554233 in words is "twelve billion, twelve million, five hundred fifty-four thousand, two hundred thirty-three".